baber/WOPTO huggingface dataset:
Patent GB-1070473-A (GB)
Title: Thermionic emitter for electron discharge devices and methods of fabricating same
IPC: H01J1/28
Filed: 1964-06-01
Abstract: An oriented polycrystalline tungsten layer is deposited on a tungsten substrate by heating the latter while directing on to it a stream of hydrogen and tungsten hexafluoride, the ratio of the two gases in the mixture determining the crystal orientation of the deposited polycrystals.  A steady flow of hydrogen is passed into the deposition chamber (144) Fig. 20 (not shown) which is maintained at a pressure of 400 torr and the tungsten substrate (141) is raised to a temperature between 500 DEG C. and 800 DEG C. - preferably 600 DEG C. - by a heater (145), whereafter tungsten hexafluoride is added, in adjustable proportion, to the flowing hydrogen which is directed on to the substrate from a conduit (147).  When the deposited layer (142) reaches the desired thickness - e.g. 0.0001" to 0.001" - deposition is terminated by disconnecting the heater (145) and directing cold water on to the rear surface of the specimen mount (143) while the flow of gas mixture is maintained.  Surface irregularities are removed by electropolishing, and the layer may be held at 1,900 DEG C. for 30 minutes to improve its uniformity.  Gas mixture ranges for producing either (100) or (210) orientation are specified.  In an alternative deposition arrangement Fig. 21 (not shown) the substrate is a 0.006" diameter thoriated tungsten filament held under tension, and having a carbonized surface layer Fig. 11 (not shown); a porous, sintered tungsten substrate impregnated with barium and aluminium oxides is also referred to.  Other materials referred to include: for the substrate - molybdenum, rhenium, niobium, and tantalum; and for the grain oriented polycrystalline layer - molybdenum, rhenium, niobium, tantalum, hafnium, iridium, osmium, platinum, rhodium, ruthenium, thorium, titanium, vanadium, ytterbium, and zirconium.  The use of the grain oriented surface as a thermionic emitter in a variety of electric discharge apparatus is described (see Division H1).
Patent GB-1192874-A (GB)
Title: D.C. Crane Motor Control Systems
Inventor: LARKINSON ROGER BRIAN
IPC: B66C13/24
Filed: 1968-05-13
Abstract: 1,192,874. Control of D.C. motors. ENGLISH ELECTRIC CO. Ltd. 9 May, 1969 [13 May, 1968], No. 22606/68. Heading H2J. A D.C. hoist motor has an armature 10 and field winding 11, and is supplied from source 12 whose current output is limited. A field control unit 17 receives a signal on line 16 which represents the armature voltage, whereby the field excitation is varied in inverse proportion to the armature voltage when the armature current is at a maximum. An isolator 20 receives a signal proportional to the armature current, whilst a tachometer generator 24 is associated with a capacitor 25 to provide a signal representing the acceleration of the motor. A summing amplifier 22 receives the signals on lines 21, 26, and, when the hoist is lowering a load, produces on line 27 a signal representing the armature current required to produce sufficient torque to balance the load torque. In the field control unit 17, the signals on lines 16, 27, are opposed to set a limit below which the motor flux cannot fall. This prevents the load from overhauling the motor.
Patent GB-577769-A (GB)
Title: Improvements in or relating to machines for casting stereotype plates
IPC: B41D3/08
Filed: 1944-11-15
Abstract: 577,769. Casting stereotype. GOSS PRINTING PRESS CO., Ltd. Nov. 15, 1944, No. 22611. Convention date, Nov. 16, 1943. [Class 100 (ii)] Amachine for casting cylindrical or semi-cylindrical stereotype plates comprises a core 4 having recesses 20 to receive inserts 22 movable inwardly and outwardly whereby recesses may be cast in the backs of the plates, for engagement by tension-applying devices when the plates are in position on the printing-cylinders, a cover 6 enclosing the core, and means actuated by the closing and opening movements of the cover for moving the inserts outwardly and inwardly respectively. The core 4 is tiltable to and from casting position, and the cover 6 is in two parts hinged together, a parting strip 26 and two border strips 28 extending lengthwise of the cover for positioning a matrix and for closing off the ends of the casting space. Each insert 22 is pivoted at 38 to a lever 34 having a pin-and-slot connection 32, 36 with the strips 28. On closing the cover 6, the strip 26 engages the levers 34 and the inserts 22 are pushed outwardly. Spring- pressed catches 49 on the strip 26 snap over the ends of the levers 34 on the closing movement of the cover and rock the levers 34 in the opposite direction on the opening movement, thus retracting the inserts.
Patent GB-755074-A (GB)
Title: Improvements in or relating to high vacuum pumping devices
Inventor: ALPERT DANIEL
IPC: H01J41/16
Filed: 1954-08-05
Abstract: 755,074. High vacua obtaining. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Aug. 5, 1954, No. 22740/54. Class 8(1). A vacuum pumping device comprises a container having therein a thermionically emissive electrode 13 and an accelerating electrode 12 to effect ionization of the gas in the container and means which comprises a filament 14 for depositing evaporated material on the wall of the container. The element 13 is a filament e.g. of tungsten, and the electrode 12 is in the form of a helix. The filament 14 is of nickel or one of the known metallic getters. The helix 12 may be made positive by about 125 volts to the filament 13 and a negative potential may be applied to the container wall. The container is connected to the system 1 to be evacuated by a pipe 7. During operation portion of the tube may dip into a reservoir of liquid air.
Patent GB-1085585-A (GB)
Title: Logic circuits
IPC: H03K19/177
Filed: 1966-05-23
Abstract: 1,085,585. Adaptive logic; counters and command generators; electric selective signalling. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 23, 1966 [June 28, 1965], No. 22824/66. Headings G4A, G4H and G4R. A multi-input, multi-output logic circuit comprises actuating means capable of actuating an output in response to the prevailing input and output states, and conditioning means capable of realigning the response of the actuating means to the prevailing input and output states. An adaptive memory matrix comprises latch-gate units providing set and reset signals for S latches in an output network controlling S output lines. The output lines are connected as inputs to the matrix, together with n primary inputs and S adaptive inputs. During learning, the output network is initially reset to a standard configuration (a particular latch only set on) and all the latches of the matrix are set off. Then the primary inputs are energized in turn, each energization being accompanied by energization of adaptive input(s) to specify which output(s) should be energized in response to that primary input and the current output(s). These signals set selected latches in the matrix. The matrix contains a latch-gate unit for each possible combination of a primary input, an output and an adaptive input, to provide the set signals for the output network, and a latch-gate unit for each combination of a primary input and an adaptive input, to provide the reset signals. The reset signals reset a given set output latch as soon as the primary signal initially setting it disappears. In a modification, the reset latch-gate units are dispensed with, a given output latch, once set, remaining on until another output latch is set on. During subsequent use of the circuit, the adaptive inputs are not used. NOR blocks are used throughout. The circuit may be used (a) in character recognition, (b) as a ring counter, (c) as a frequency divider, (d) to recognize a particular sequence of inputs, (e) as a multiplexor, (f) as a pulse distributer, (g) as a command generator in a data processing system, machine conditions and a programmed instruction controlling primary inputs, (h) as a coder.
Patent GB-629653-A (GB)
Title: Improvements in or relating to sealing devices
IPC: F16J15/36
Filed: 1946-07-31
Abstract: 629,653. Stuffing-boxes. PAYNE, F. E. July 31, 1946, No. 22835. Convention date, Aug. 9, 1945. [Class 122 (v)] A rubbing collar sealing device comprises a sleeve 48 surrounding a shaft 34 and having at one end an enlarged region 50 between which and the shaft is compressed a sealing ring 53, and at the other a sliding driving connection 51, 52 with a sealing washer 43 having a sealing surface 45 in engagement with a sealing surface on a fixed washer 42. A flexible sleeve 46 has a flange 23<1> in contact with the washer 43, a portion 55 of which telescopes into the sleeve. A similar flange 22<1> abuts a flange 54 on the sleeve 48, the enlarged portion 50 of which telescopes into the sleeve. Ferrules 27<1>, 47 clamp the sleeve to the washer 43 and the portion 50 and a spring 33<1> is compressed between flanges on the ferrules.
Patent GB-1081724-A (GB)
Title: Gyromagnetic resonance
IPC: G01N24/00
Filed: 1965-05-28
Abstract: 1,081,724. Electro-physical measurement. VARIAN ASSOCIATES. May 28, 1965 [June 5, 1964], No.22838/65. Heading G1N. In a gyromagnetic spectrometer to determine electron-nuclear double resonance with large amplitude R. F. fields, the R. F. supply is pulsed to reduce heating of the sample and resonant cavity, and to prevent spurious radio frequency, interaction with the E. P. R. signal detector, the circuit is gated synchronously with the pulses and applied to a narrow band amplifier tuned to the pulse repetition frequency. A first pulsed R. F. field may be used having a frequency near the N. M. R. point with a second R. F. field having a slightly different frequency applied intermediate the first series of pulses. The detector output signal is proportional to the difference between the electron-nuclear resonance at the frequencies of the first and second fields. A spectrum may be obtained by "scanning" the R. F. fields. Alternatively a bucking magnetic field may be applied at the pulse repetition frequency to oppose the polarizing field and balance out the field shift due to the R. F. pulse. The apparatus is applicable to the analysis of free radicals with strongly coupled protons in liquid, such as n-heptane.
Patent GB-1132374-A (GB)
Title: Process fluid heater
IPC: C10G9/20
Filed: 1966-05-23
Abstract: 1,132,374. Process fluid heaters. FOSTER WHEELER CORP. 23 May, 1966 [29 June, 1965], No. 22947/66. Headings F4A and F4S. A processs fluid heater has a row of vertical tubes 41 extending through a chamber 23 into which burners 31 fire. The tubes 41 are suspended by a weight and pulley arrangement 49 at their upper ends to allow for expansion, and supplied with fluid from a header 45 through flexible connectors 46. Each tube is formed at its lower end with a reduced diameter portion (63) (Fig. 3, not shown) which projects into a lower horizontal collecting header 44, and is provided with perforations (65) which allow the fluid to pass from the tube to the header, whilst still retaining any catalyst in the tube. A row of extension-pieces (67) with removable end caps 71 also project into the header 44 to nearly abut the end of tubes 41, whereby catalyst may be removed or inserted. A process fluid outlet tube 70 is connected to the centre of the lower header 44.
Patent GB-623812-A (GB)
Title: Improvements in or relating to jigs and fixtures
IPC: B23Q1/52
Filed: 1946-08-01
Abstract: 623,812. Turrets. WHARTON, W., and WHARTON, J. Aug. 1, 1946, No. 22962. [Class 83 (iii)] A multi-sided drum 1 constituting a base for jigs and fixtures is arranged with its faces parallel to the central axis about which the drum is rotatable and with a plurality of machined T-slots 2, 3 in each of such faces, means being provided for securing the rigidity, and preventing the rotation, of the drum and removing from the supporting trunnions the whole of the vertical thrust of a machine tool operating on a component mounted in one of the faces. Each of the end walls of the drum carries a disc 6 provided with a stub axle 7 rotatably supported in bearings 8 which are secured to standard elements 11 mounted in vertical T-slots in the inner faces of a supporting bracket 4. The drum is rotated by means of an arm 14 which is provided with a spring- pressed pawl 19 and a cam 32 controlling a projection 28 on a pivoted arm 26 ; the pawl 19 and projection 28 engage notches in a disc 17 for locating the drum in position. For wedging the drum in operative position, two pairs of wedges 41, 42 are mounted on screwthreaded rods 36, 37 so that they can be slidden on inclined surfaces 43, 44 of elements 35 towards and away from the drum. The T-slots 2, 3 are disposed longitudinally and/or transversely in the faces of the drum. The bearings and supports for the drum, and the rotational and wedge mechanism, may be built up from standardised elements as described in Specification 587,448.
Patent GB-400386-A (GB)
Title: Improvements in and connected with hydraulic joints particularly suitable for divingdresses or apparatus
IPC: B63C11/10
Filed: 1932-08-16
Abstract: 400,386. Tubular joints. PERESS, J. S., Devonshire Villa, High Road, Byfleet, Surrey. Aug. 16, 1932, No. 22984. [Class 99 (i).] Joints for submersible apparatus, particularly deepdiving armour such as that described in Specifications 166,596 and 204,481, [both in Class 99 (i), Pipes and tubes, Joints &c. for], comprises an annular piston with an annular packing. Fig. 1 shows a spherical joint, suitable for a knee-joint, consisting of a double-walled female part a and a single-walled male part b, both partspherical. The part a is made with a removable section a<6> to enable the part b to be fitted, and the part b is fitted with an hydraulic packing-ring c secured by a ring d and confining a liquid filling e. In a modification, the part a consists of an outer and an inner portion, each in one piece, and the part b has a packing-supporting annular in two parts, the ring d being also divided. The parts a have suitable flanges for attaching them to various parts of a diving-apparatus. If the joint parts need only have a relative rotational movement, the parts a, b may be cylindrical.
Patent GB-865509-A (GB)
Title: Improvements in or relating to electric suction cleaners
IPC: A47L5/24
Filed: 1959-07-03
Abstract: 865,509. Cooling dynamo-electric machines. TORNADO A.G. July 3, 1959 [July 10, 1958], No. 22996/59. Class 35. An electrical suction cleaner having a motor 3 within a casing 4 and placed centrally inside a cleaner housing 1 has ventilation ducts 17, 18 leading from casing to housing so that cooling air may flow from the surrounding air through the motor without any dust contamination. The duct 17 communicates with a hollow handle 2 fixed to the casing and having holes 24 to the outside air. A fan 28 on the motor shaft draws air in through duct 18 through the motor and out through duct 17, flow of air outside the motor being prevented by sealing ring 29 between casing 4 and motor frame 5.
Patent GB-170431-A (GB)
Title: Improvements in or relating to pigments
IPC: C09C1/02
Filed: 1920-08-04
Abstract: 170,431. Smith, J. C. Aug. 4, 1920. Pigments.-In producing pigments consisting of a true pigment and an " extender," such as barium sulphate, by precipitating the extender in the presence of the suspended pigment or precipitating the two simultaneously, the solutions employed are diluted or the precipitating reagent is added so gradually as to cause the formation of barium sulphate in the colloidal state. The resulting pigment is separated by filteration, dried and ground.
Patent GB-764891-A (GB)
Title: Improvements in or relating to devices for sterilizing bottles
IPC: B08B9/34
Filed: 1954-08-09
Abstract: 764,891. Sterilizing bottles. SEITZWERKE, GES. Aug. 9, 1954 [Aug. 14, 1953]. No. 23029/54. Class 138(1) In a device for sterilizing bottles, including a supply pipe 12 for sterilizing liquid and a spray tube 14 through which the liquid is adapted to be sprayed into the inside of a bottle 21 adapted to be disposed vertically by its mouth over the upper end of the the tube 14, the spray tube 14 is vertically movable relative to the supply pipe 12 and is secured to and surrounded by a cupshaped member 17 adapted to enclose the mouth of the bottle, the member 17 being provided with an overflow discharge means 18, 19 disposed above the mouth of the bottle such that the member 17 is filled with liquid up to the level of the overflow means 18, 19. The supply pipe 12 for liquid under pressure is connected by a screw cap 11 to a head 10 fixed to a frame by a holder 13. The tube 14 which is slidable in the head against the urge of a spring 23 has a hole 15 at its lower end and surrounding the tube 14 within the cup 17 is a resilient base member 22 provided with a diametrical groove 22a. The overflow means comprises a pipe 18 on the cup, connected to a drain hose 19. A packing ring 20 is provided in the cup to engage the neck of a bottle. When the bottle is depressed on the tube 14, the hole 15 is uncovered and the liquid sterilizes the interior of the bottle and fills the cup to the level of its overflow so that the bottle mouth is also treated by the liquid. On release of the bottle the tube 14 rises and a sealing ring 16 prevents leakage of liquid.
Patent GB-1479529-A (GB)
Title: Drum eg for cables or leads
IPC: B65H75/14
Filed: 1975-05-27
Abstract: 1479529 A drum for cables F THEYSOHN 27 May 1975 [27 May 1974] 23085/75 Heading B8M A drum for cables or leads comprises a plastics core I made of two halves separated by the axis of the drum and two flanges 3 each of which is provided with an elastic zone 7 which can be of U, S, W or V-shaped cross-section thereby allowing the area to deform when subjected to stress and to prevent damage of the flanges 3. The two halves are lockingly engaged with one another by springs (not shown) and connected to a rigid central parts 6 of the flanges 3 by means of collars 9. The central part 6 of each flange 3 comprises alternating segments 8 and 9 raised respectively inwardly and outwardly of the drum. A plurality of the drums may be stacked by having the flange of one engaging with complementary flanges of the other such that the outwardly raised portion of one engages with the inwardly raised portion of the other. The central part 6 may be connected to the elastic area 7 by ribs 12. In another embodiment further flanges 3 of the drum, Fig. 3 (not shown) are attached by screws or rivets to the flanges of the drum, the further flanges acting as reinforcing flanges. The hollow space between each flange 3 of the drum and the reinforcing flange 3 may be filled with elastic foam material to increase the strength of the flanges 3. Also, in place of a double flange arrangement a reinforcement ring (11) having reinforcement ribs extending into the segments 8 may be provided.
Patent GB-887963-A (GB)
Title: An indicator device for filter units
Inventor: SCAVUZZO WILLIAM JOSEPH
IPC: B01D46/42
Filed: 1960-07-01
Abstract: 887,963. Thermostatic filter-clogging indicators. PUROLATOR PRODUCTS Inc. July 1, 1960, No. 23137/60. Class 46. An indicator rod 16 having a flat face on an upper portion and a rib 33 on a lower portion is normally retained in an invisible position by engagement of the upper end of the rib under part of the cylindrical portion of a piston 14 movable in a cylindrical chamber 13 which partly intersects the cylindrical bore 15a in which rod 16 is located, the piston 14 normally being urged into contact with the left-hand end of chamber 13 by a spring 26a. Upon a predetermined pressure difference between a filter inlet 11 and outlet 12 being exceeded, the resistance of spring 26a is overcome until the Fig. 2 position is reached, where a notch 25 on piston 14 has come opposite the rib 33, permitting rod 16 to be forced upwards by a spring 32. Changes in atmospheric pressure (accessible to parts 14, 15 of the piston through bore 15a and loose fitting of the piston) are prevented from reaching and affecting the filter pressure conduits 20 and 17 by resilient rings 23, 24. At temperatures below a predetermined value, when excess pressure difference may be due only to high viscosity of the liquid (e.g. oil), being filtered, a bi-metallic coil 27 carrying a valve disc 29 closes inlet 18 of chamber 13 to prevent ingress of oil and thereby prevent actuation of the indicator device. U.S.A. Specification 2,878,936 is referred to.
Patent GB-586898-A (GB)
Title: Improvements in dressing cases
IPC: A45C11/00
Filed: 1944-11-23
Abstract: 586,898. Dressing-cases. POWELL, F. Nov. 23, 1944, No. 23287. [Classes 18 and 1331 [Also in Group XXV] A dressing-case is provided with clamping- members for detachably securing articles therein comprising in combination a pair of upstanding members secured to a projecting frame or wall and on which slides a cross-bar having tubular partitions for this purpose and spring means to keep the cross-bar under tension. As shown, upstanding members 18 of a U-shaped bracket 19 secured to a board 20 of wood, metal, cardboard or synthetic resin and covered with leather or other material 21 are provided on which slide tubular portions 17 of a cross-bar 12 under the action of spring 23 housed in an outer channel part 22 of tubular portion 17. The cross-bar .may be of channel section embracing a strip of leather or other soft material 14.
Patent GB-890686-A (GB)
Title: Improvements in and relating to impulse senders
Inventor: PECAK TADEUSZ RAJMUND
IPC: H04M1/02
Filed: 1958-07-22
Abstract: 890,686. Impulse transmitters. ERICSSON TELEPHONES Ltd. July 21, 1959 [July 22, 1958], No. 23450/58. Class 40 (4). A telephone handset includes a straight pull impulse transmitter comprising a flexible member movable manually to one of a number of alternative positions from which it is restored automatically, means being provided for operating impulsing contacts in dependence on the restoring distance. A flexible steel tape 21 having ten finger holes 25 is supported in a moulded handset by an arcuate metal bridge 23 screwed to two frame members 16. It extends between two rotatably mounted drums 18, 19, drum 18 being spring-loaded to tend to rotate in an anticlockwise direction and drum 19 being spring-loaded to tend to rotate in a clockwise direction. Spaced perforations 22 in the tape engage a toothed wheel 24 coupled to a starwheel 27 and an impulsing wheel 28 through a unidirectional clutch. The impulsing transmitter is operated by inserting a finger in a desired hole 25, moving the tape 21 until the finger abuts stop 32 and then withdrawing the finger, whereupon the tape returns under spring action and controlled by flywheel 30 to operate impulsing contacts on springset 31. Alternative embodiments.-The drums may be replaced by spring-loaded toothed wheels each in engagement with a perforated track on the tape 21, channels being provided to accommodate the free ends of the tape. Alternatively, only one drum 19 may be dispensed with and the free end of tape contained between parallel guides, the tape being retained in an extended position by a spring fastened to the free end of the tape. The tape may be replaced by a chain.